FR2630878A1 - DISCS FOR BREAKERS WITH DISC MOTORS - Google Patents

Abstract

The disc for disc moulder has a chamfered outer edge and in the middle of which is formed a recess for mounting on the axis of the disc moulder. It consists of an inner load-bearing part 1 in the form of a cap and a wear ring 2 fixed at 3 to the outer edge of the load-bearing part 1. Application: clod-breaking devices used intensively in agriculture.

Description

DISCS FOR BREAKERS WITH DISC MOTORS

  The invention relates to a disc for disc breakers whose outer edge is chamfered and in the middle of which is formed a recess for mounting on the axis of the disc.

breakwaters with disks.

  Breakwaters are used in agriculture

  generally as a means of working the soil. In the breaks

  used and commonly known, the discs are

  monobloc, with a plain edge or with notches.

  When operating in a field, the discs are, after a certain number of hectares, rubbed to such a degree that they can no longer be used and must be replaced. The worn part is about 15 to 20% of the entire disc, the unused portion representing 80 to 85% of the entire disc and discarded. Replacement of used discs can only be done by complete dismantling in the workshop of

rows of disks.

  The object of the invention is to create a disk in which, in case of wear of the periphery of the disk, it is not necessary to replace the entire disk, and in

  which replacement is simple and easy to perform.

  This problem is solved according to the invention thanks to the fact that the disc is constituted by an inner bearing part and by a wear ring fixed on the outer periphery of the

carrier part.

  The inner bearing part has a cap-like shape, its bearing surface being flat, the wear ring

  in this case, conical or cap-shaped.

  outside being, in this case, conical or cap-shaped.

  In another advantageous embodiment of the invention,

  the inner bearing part is in the form of a cap, its bearing surface is spherical, the outer wear ring

being conical or spherical.

  In an advantageous embodiment of the invention, the inner bearing part is frustoconical, its bearing surface is flat, the outer wear ring is also frustoconical. Suitably, the wear ring is in one

  piece or it consists of at least two segments.

  The disc according to the invention comprising a wear ring completely eliminates the disadvantages of the current discs manufactured in one piece, because in the case of frictional wear of the outer wear ring, the bearing part

  the largest amount of material

  aunt remains usable also later, only the ring

  wear must be replaced. As a result, the disc according to the

  vention saves the material because a large amount of steel

  high strength can be saved.

  Replacing the wear ring is simpler and faster than replacing a disc made of

  only one piece, which in the agricultural holdings

  these discs, represents a significant time saving.

  Another advantage of the disc according to the invention is that it

  can be mounted on site and does not require conditions of

  link. Making the segmented ring is substantially simpler and less expensive than manufacturing

  of the entire disk, which also makes it

  supply of spare parts.

  Another advantage lies in the fact that the wear ring according to the invention can be used for the disks of all breakers used in agriculture,

  discs that may have various geometries and dimensions

sions.

  Other goals, advantages and features appear

  reading the description of various modes of

  tion of the invention, made in a non-limiting manner and with reference to the accompanying drawings in which: - Figure 1 shows in plan view a disc provided with a wear ring having a plain edge;

  FIG. 2 represents the disk represented in FIG.

  1, seen from the side, in section, provided with a cap-shaped bearing part, comprising a bearing surface and a conical wear ring; 3 shows in plan view a disk provided with a wear ring having notches; - Figure 4 shows the disc shown in Figure 3, side view, in section, with a cap-shaped bearing part having a spherical bearing surface and a conical wear ring; - Figure 5 shows in plan another form of disk provided with a wear ring having a plain edge; FIG. 6 shows the disk of FIG. 5 viewed from the side, in section, provided with a cap-shaped bearing part comprising a spherical bearing surface and a conical wear ring; FIG. 7 shows another variant of disk provided with a wear ring comprising a plain edge, seen from above; - Figure 8 shows the disk shown in Figure 7 seen from side in-section and provided with a cap-shaped bearing part, having a flat bearing surface and a cap-shaped wear ring;

  FIG. 9 shows in plan another form of execution.

  disk assembly having a wear ring having a plain edge; FIG. 10 shows the disk shown in FIG. 9, viewed from the side, in section, provided with a frustoconical carrying piece comprising a surface

  flat support and a truncated wear ring

than.

  As can be seen from the figures, the disc according to the invention

  tion is constituted by an inner bearing part and a wear ring 2 which is fixed on the outer periphery of the carrier part 1. The wear ring 2 is fixed by means of screws 3 or rivets on the supporting part 2. The outer edge

  of the wear ring 2 is chamfered in a known manner.

  The outer edge of the wear ring 2 may be plain or may have notches. In the latter case, round indentations are formed in a desired number in the outer edge of the

  the wear ring 2, in known manner.

  In the middle of the carrier part 1 is formed a recess

  6 whose shape and dimensions adapt to the shape and dimensions of the axis of the breaker. The recess 6 may have a square, round shape, or any other shape that

  adapts to the shape of the breaker axis.

  The carrier part 1 may be in the form of a cap, as is apparent from FIGS. 1 to 8. The bearing surface 5 of the cap-shaped carrier member 1 may be spherical (see FIGS. 4 and 6) or may be to be a flat surface (see

Figures 2, 8 and 10).

  The carrier part 1 can also be frustoconical as shown in FIGS. 9 and 10, the bearing surface 5

being a flat surface.

  The outer wear ring 2 can be in one -

  piece or be made up of several segments. In the embodiment shown, the wear ring 2 is constituted by three segments 7, 8, 9. The wear ring 2 can be cap-shaped (see FIGS. 6 and 8) or be frustoconical (see

Figures 2, 4, 10).

  In the case where the wear ring 2 is composed of several segments, the assembly and disassembly of the wear ring 2 is

even easier.

  Of course, the present invention is not limited to the embodiments described and shown and is capable of numerous variants accessible to the man of

  art without departing from the spirit of the invention.

Claims (8)

  1. Disc for disc breakers, whose outer edge is chamfered and in the middle of which is formed a recess for mounting on the axis of the breaker disc, characterized in that it consists of a bearing part (1) and a wear ring (2) fixed to the   outer edge of the carrier piece (1).   2. Disk according to claim 1, characterized in that the inner carrier piece (1) has a shape of   cap, its bearing surface (5) being flat and the wear ring   outer re (2) representing a conical shape.   3. Disk according to claim 1, characterized in that the inner carrier piece (1) has a shape of   cap, and its bearing surface (5) a spherical shape, the   outer wear ring (2) having a conical shape.   4. Disk according to claim 1, characterized in that the inner carrier piece (1) has a shape of   cap, and its bearing surface (5) a spherical shape, the   outer wear ring (2) having a spherical shape.   5. Disk according to claim 1, characterized in that the carrier part (1) has a cap shape, its   bearing surface (5) being flat and the external wear ring   rieur (2) having a cap shape.   6. Disk according to claim 1, characterized in that   the inner supporting part (1) has a truncated shape   conical, its bearing surface (5) being flat and the wear ring   outside (2) has a frustoconical shape.   7. Disk according to one of claims 1 to 6, characterized   characterized in that the wear ring (2) is made in one piece. -   8. Disk according to one of claims 1 to 6, characterized   characterized in that the wear ring consists of at least two segments (7, 8 or 9).